I Figure below shows a concrete element that is cast of ksi

I Figure below shows a concrete element that is cast of ksi steel. 4ks? concrete and reinforced with 60 , Li 16 L2 8 (a) What is the recommended thickness, hi, of the member for serviceability per AC13 18-14, if it was to be a solid slab. Keep it prismatic throughout. (b) What would the thickness be if it was a beam instead? Again, keep it prismatic throughout (c) Would your answer to (a) and (b) change if the pin was replaced by a fixed support. Explain/justify

Solution

Answer:

The beam mention in the query is a case of simply support sunbeam with an over hang.

so for the strength of brain of distance to distance downward share separating the beam, we get a S.S.B & a beam beam .

As per ACI 318-14, table 7.3.1.1 & 9.3.1.1, The least amount width values of ray and slab to satisfy the deflection criterion as per serviceability supplies are:

A. The minimum thickness of a slab must be = (L1/20 + L2/10) = (16/20) + (8/10) =1.6 ft

B. The minimum thickness of a beam must be = (L1/16+ L2/8) = (16/16) +(8/8) = 2 ft.

C. yes, If the pinned hold is replace by the fixed hold up, the optional width principles change ,as width criteria change eventually it will lead to the alter in deflection criteria.

As the project portion is more probable to get damaged due to extreme deflections.